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Groups > linux.kernel > #1571374
| From | Peter Zijlstra <peterz@infradead.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCHv7 6/8] printk: use printk_safe buffers in printk |
| Date | 2017-02-01 10:40 +0100 |
| Message-ID | <t5Zyr-4a5-41@gated-at.bofh.it> (permalink) |
| References | <sT0LE-36Q-9@gated-at.bofh.it> <sT0LE-36Q-29@gated-at.bofh.it> <t5Kzn-3vy-11@gated-at.bofh.it> <t5Z5o-3VC-25@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Wed, Feb 01, 2017 at 10:06:25AM +0100, Jan Kara wrote: > Clearly scheduler code (update_load_avg) calls WARN_ON from scheduler while > holding rq_lock which has been always forbidden. Sergey and Petr were doing > some work to prevent similar deadlocks but I'm not sure how far they > went... Its not forbidden, just can result in the occasional deadlock, meh. In any case, there's a patch in tip fixing that warn trigger.
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Re: [PATCHv7 6/8] printk: use printk_safe buffers in printk Ross Zwisler <zwisler@gmail.com> - 2017-01-31 18:40 +0100
Re: [PATCHv7 6/8] printk: use printk_safe buffers in printk Jan Kara <jack@suse.cz> - 2017-02-01 10:10 +0100
Re: [PATCHv7 6/8] printk: use printk_safe buffers in printk Peter Zijlstra <peterz@infradead.org> - 2017-02-01 10:40 +0100
Re: [PATCHv7 6/8] printk: use printk_safe buffers in printk Petr Mladek <pmladek@suse.com> - 2017-02-01 16:40 +0100
Re: [PATCHv7 6/8] printk: use printk_safe buffers in printk Peter Zijlstra <peterz@infradead.org> - 2017-02-01 17:20 +0100
Re: [PATCHv7 6/8] printk: use printk_safe buffers in printk Steven Rostedt <rostedt@goodmis.org> - 2017-02-01 17:50 +0100
Re: [PATCHv7 6/8] printk: use printk_safe buffers in printk Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> - 2017-02-02 03:20 +0100
Re: [PATCHv7 6/8] printk: use printk_safe buffers in printk Peter Zijlstra <peterz@infradead.org> - 2017-02-02 10:10 +0100
Re: [PATCHv7 6/8] printk: use printk_safe buffers in printk Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> - 2017-02-02 11:10 +0100
Re: [PATCHv7 6/8] printk: use printk_safe buffers in printk Petr Mladek <pmladek@suse.com> - 2017-02-02 16:30 +0100
Re: [PATCHv7 6/8] printk: use printk_safe buffers in printk Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> - 2017-02-03 03:50 +0100
Re: [PATCHv7 6/8] printk: use printk_safe buffers in printk Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> - 2017-02-02 03:00 +0100
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